Filling-machine.



J. P. GRANDALL.

FILLING MACHINE.

APPLICATION FILED NOV 22, 1910.

1,108,974. Patented Sept. 1, 1m

WITNES szs: 11v VENTU/i A TTOR/VEY THE Xn'n/RRIS PETERS c0..Pl4cT0-LITHou WASHINCTUN, L). c.

v To all whom it may concern:

UNITED STATES PATENT OFFICE.

JOHN P. CBANDALL, OF BUFFALO, NEW YORK.

FILLING-MACHINE.

' Be it known that I, JOHN P. CRANDALL a citizen of the United States ofAmerica, residing at Buffalo, in the county of Erie and State of NewYork, have invented certain new and useful Improvements in Filling-Machines, of which the following is a full, clear, and exactdescription.

The main objects of my invention have been: to provide a device whichshall accurately weigh the amount of li uid put in each receptacle andwhich shal automatically shut off the supply when any predeterminedamount of liquid has been discharged from the machine; to entirelyincase all parts which come in contact with the liquid being handled andthus prevent gumming and sticking of the valves due to evaporation; toprovlde a machine which shall be very easy to operate, even by un- I'skilled operators; to rovide a device which shall be easy and 0 cap tomanufacture; and to provide a machine which shall operate under high orlow pressure of the liquid with uniform results.

Reference is to be had to the accompan ing drawings, forming part ofthis spec" cation, in which similar characters of reference indicatesimilar parts throughout the several views of which:

Figure 1 is a sectional elevation of my machine in perspective. Fig. 2is a sectional view taken on the line A-B of Fig. 1.

5 is the casing of my device which may be made in one piece or built upof parts 6, 7

and 8 suitably secured together. Screwthreaded into an aperture in thetop of the casing 5 is a tube 9. This tube projects verticauy above thecasing and has loosely disposed therein a hollow valve stem 10, which isclosed at its upper end. The upper end of the said tube is closed and isprovided with an adjustable abutment 40 which passes through a stuffingbox 41. This screw limits the upward travel of the stem 10. At the lowerend of the said stem is loosely mounted a plug valve 11. Into the casing5 and directly beneath the tube 9 is screwed a valve seat member 12 intowhich the plug valve 11 is arranged to fit, thereby forming thedischarge valve 52 of my device. The valve stem 10 guides the plug valve11 to its seat and also acts as a counterweight to overcome resistanceand friction of the working parts of the machine and thus insures theautomatic Specification of Letters Patent.

Application filed ovember 22, 1910. Serial No. 583,647.

rality of lateral slots 20, which are arranged to register at a certainpoint during the operation of the machine and through which the fluid isadmitted. A nut 16 and washer 17 are placed upon the end of the plug 14by which the plug seat 15 is kept in place and adjusted. The casing at aoint opposite the end of this plug is provi ed with an aperture 18through which the said nut is made accessible. The said aperture isclosed by means of the can 19. Preferably integral with the plug seat 15is a lever 21 which extends inwardly toward the center of the casing 5and has its inner end disposed within an opening 22 in one side of thehollow stem 10. Leading into the hollow tapered plu Patented Sept. 1,1914.

14 is the liquid supply pipe 23 which is pre erably provided with a stopcock 24 by posed an operating rod 25 which is bent so as to form a rightangle. The part 26 of said rod-25 is rotatably disposed in a horizontalposition in suitable bearings carried by the casing 5. The part 27 ofsaid rod 25 extends inwardly toward the center of the casing and has itsinner end disposed in an opening 28 in the hollow stem 10. Astufling box29 is provided through which the part 26 of the said rod passes so as toprevent leakage at this point. To the outer end of the rod part 26 isrigidly secured a T piece 30 in one end of which is fitted an operatinglever 31 and in the opposite end of said T piece is carried a segmentrod 32 which is curved at its outer end so as to form a segment of acircle, said segment having its center in the part 26 of the rod 25.This segment rod is preferably made of steel and hardened, and isprovided in its upper face with a notch 33. The operating lever 31 isprovided with a handle 38 which is grasped by the operator when themachine is set to operate. Pivotally supported in any suitable way abovethe segment rod 32 is a trigger rod 34 provided with a long arm 35 and ashort arm 36. Upon the short arm 36 is adjustably carried a triggermember 37 which is engageable with the notch 33 in the segment arm Theshort arm of the trigger lever is preferably screw threa'ded and hasadjustably mounted thereon a weight The long ar n of the trigger leveris connected to -the scale pan by means to be hereinafter described. I

42 is a vertical stand which supports the machine. The horizontalsupporting member assists in holding the outer end of the machine andthe pivotal point for the trigger arm 34-. Mounted upon the verticalstand &2, is a horizontal scale support as, at the outer end or which iscarried in any suitable manner a scale which I have representedgenerally by the numeral L5. For this scale 1 may use any one of thenumerous typeset balancing scales which are familiar to all skilled inthe art and, therefore, need not here be described in detail, exceptthat 46 represents the scale panof the scale and a? the weight panthereof. Upon the scale pan a6 is placed the receptacle to be filled asrepresented in F 1 and upon the weight pan is placed the weight 4:8.This weight is equivalent to the weight of the amount of liquid to beplaced within the can plus the weight of the can and the weight of theparts of the machine carried by this scale pan. Carried by the scale pan46 is a vertically disposed trigger rod. 49 which is adjustably securedto said scale pan by any suitable means at 50. Connecting the upper endof the rod t9 with the long arm 35 of the trigger 3 is any suitableflexible means, preferably the chain 51.

Having thus described my invention 1 will now describe its operation.

Before starting to operate the machine, all the parts are insubstantially the position shown in Fig. 1. Aproper weight as is placedupon the weight pan L7 and the receptacle to be filled is placed uponthe scale pan 46 with its mouth directly beneath the discharge valveBoth the discharge valve 52 and the inletyalve 13 are closed at thistime. The operator now presses downwardly upon the handle 33 01": theoperating lever 31 until the trigger 37 engages the notch in the segment32. This movement by means of the operating rod 25, raises the valvestem 10 together with the plug valve 11. An in stant after the plugvalve 11 starts to open, the lever 21 is raised by the upward move mentof the valve stem 10 and opens the inlet valve 13, thus allowing thefluid under pressure to enter the casing of the machine and pass outthrough the discharge valve and into the receptacle placed beneath thesame. When the required weight of liquid has been run into thereceptacle on the scale pan 4:6, as indicated by the weight 48 on theweight pan 4:7, this side of the scale l5 begins to move downwardly. Asthe scale pan 46 is connected with the long arm 35 of the trigger lever3d, the trigger member 37 will be raised and dlsenpa e the notch 33 1nthe c: 52 segment 32 as the said scale pan descends. when the triggermember 18 released the valve stem 10 is allowed to fall by gravity and,by means of the lever 21', first closes the inlet valve 13 and aninstant later closes the discharge valve and leaves the machine readyfor the next cycle of. operation. Thus the supply of liquid isautomatically cut oil when the required amount of liquid has beendischarged and this amount is always uniform each time the machine isoperated with the same weight uponthe weight pan 4:7 and with the sameliquid. When the supply 13 is s iut oft by the downward movement of thevalve stem 10, the casing is left with only atmospheric pressure withinit and therefore with no excess pressure upon the discharge valve 52 andthis is true irrespective of the pressure in the supply pipe and thismakes it possible to operate the machine under high or low pressurewithout appreciable variation of r sults.

In the drawings for convenience I have shown a trip scale but any typeof scale may be used with my filling machine with equal eiiiciency andstill be within the scope oi the appended claims.

Obviously some modifications as to the de tails herein shown anddescribed may be made, without departingfrom the spirit of my inventionand I do not wish to be limited to the exact embodiment herein shown anddescribed.

Having thus described my invention what T claim is:

1. in a filling machine the combination with scales, capable of holdin aliquid receptacle; of an inclosed casing, a supply valve within saidcasing, a discharge valve within said casing, means for opening saidvalves, means for holding said vaivesvopen against th normal tendency toclose, and mea s for automatically tripping and thereby closing saidvalves when a predetermined amount of liquid has been dischar ed fromthe machine. a

2. In a filling machine the combination with scales, capable of holdingva liquid receptacle; of an. inclosed casing, a supply valve within saidcasing, a discharge valve within said casing manual means for openingfirst one of said valves and then the other in the reverse of the orderabove named, means for holding said valves open against their normaltendency to close, and automatic means for tripping and thereby closingsaid valves in the order named when a predetermined amount 01". liquidhas been discharged from said machine.

3. In a filling machine the combination with scales, capable of holdinga liquid re ceptacle; of an inclosed cas' a sup 13 valve within saidcasing, a disc rge valve within said casing, manual means for openingfirst one of said valves and then the other in the reverse of the orderabove named, means for holdin said valves opens against their normal tenency to close, and means connecting said valves and said scales,wherebysaid valves may be automatically tripped and thereby closed in the orderabove named when a predetermined amount of liquid ha been dischargedfrom said machine.

4. In a filling machine the combination with scales, capable of holdinga liquid receptacle; of an inclosed casing, a discharge valve disposedwithin and at the bottom of said casing, a closed tube rising verticallyfrom said casing above said discharge valve, a discharge valve stemslidably mounted in said tube and said casing, a supply valve mountedwithin said casin and connected with a suitable Suppl of liquid, manualmeans for opening said discharge valve and said supply valve in theorder named, means for holding said valves open against their normaltendency to close, and automatic means for tripping and thereby closingsaid valves in the reverse of the order above named when a predeterminedamount of liquid has been discharged from said machine.

5. In a filling machine the combination with scales, capable of holdinga liquid receptacle; of an inclosed casing, a discharge valve disposedwithin and at the bottom of said casing, a closed tube rising verticallyfrom said casing above said discharge valve, a discharge valve stemslidably mounted in said tube and said casing, a supplyyalve comprisinga hollow tapered plug carried by said casin and connected with asuitable supply of fiquid, a valve seat member rotatably mounted uponsaid 1plug, said sup ly valve plug and seat eac bein provred withlateral slots, manual means or opemng said discharge valve and saidsupply valve in the order named, means for holding said valves openagainst their normal tendency to close, and automatic means for trippingand thereby closing said valves in the reverse of the order above namedwhen a predetermined amount of liquid has been discharged from saidmachine.

6. In a filling machine the combination with scales, capable of holdinga liquid receptable; of an inclosed casing, a discharge valve mountedwithin said casing comprising a valve seat member secured to the bottionof said casing, tapered valve plu fitting into said valve seat, a closedtube rising Vertically from said casing, a discharge valve stem slidablydisposed within said casing and said tube and loosely connected to saiddischarge valve plug, a supply valve comprising a hollow tapered plugcarried by said casing and connected with a suitable supply of liquid, avalve seat member rotae tably mounted upon said plug, said suppl valveplug and seat each being provided wit latera discharge valve and said su1y valve in the order named, means for holding said valves open againsttheir normal tendency to close, and automatic means for tripping andthereby closing said valves in the reverse of the order above named whena predetermined amount of liquid has been discharged from said machine.

7 In a filling machine the combination with scales, capable of holding aliquid receptable; of an inclosed casing; a discharge slots, manualmeans for opening 881d valve mounted within said casing compris- I ing avalve seat member secured to the bottom of said casing, a tapered valveplug fitting into said valve seat, a closed tube rising vertically fromsaid casing, a discharge valve stem slidably disposed within said casinand said tube and loosely connected to said discharge valve plug, asupply valve comprising a hollow tapered plug carried by said casin andconnected with a suitable supply of %iquid, a valve seat memberrotatably mounted upon said plug, said supply valve plug and seat eachbeing rovided with lateral slots, a supply valve ever secured to saidvalve seat member and loosely connected to said discharge valve stem, anoperating rod disposed within said chamber and loosely connected to saidvalve stem manually operated means connecting said rod, outside of saidcasing, for o crating said valves, trigger means enga ea le with saidmanually operated means or holding said valve open and means connectingsaid trigger means with said scales whereby said valves may beautomatically tripped and thereby closed when a predetermined amount ofliquid has been discharged from said machine.

8. In a filling machine the combination with scales, capable of holdinga liquid receptable; of an inclosed casing, a discharge valve mountedwithin said casing, a tube extending vertically above said casing, avalve stem slidably dlsposed within said casing and said tube, a supplyvalve comprising a stationary plug carried b said casing and a rotatablevalve seat mem er, a supply valve lever connecting said valve seatmember with said valve stem, a right-angled operating rod rotatablydisposed in said casing having its inner end loosely connected to saidvalve stem, manually operated means secured to the outside end of saidoperating rod, a segment rod secured to said operating rod and providedwith a notch, a trigger arm pivotally supported above said segment rod,a trig er carried by said trigger arm and engagea le with said notch, avertically adjustable rod carried by the scale pan on which a receptacleis placed and 'f In testimony whereof-1112mm hereunto set flexlble meansconliectlng said vertical 1 0d my hand 1n the presence of two Witnesses.vith 'ai tri 'e- 1,1?111 Whereb the 91' I 1" S d be 1 Y JOHN P.eimimiihe.

valves may be automatically tripped and V 5 thereby closed when apredetermined amount WVitnesses:

of liquid has been discharged from said ETHEL A. KELLY machine. J. W'M.ELLIS.

Copies of this patent may be obtained for five cents each, byaddressing" the Commissioner of Patencs,

Vfashing ton, I). C. i

